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GET /api/patches/2216843/?format=api
{ "id": 2216843, "url": "http://patchwork.ozlabs.org/api/patches/2216843/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260327102939.1095257-2-yi.zhang@huaweicloud.com/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327102939.1095257-2-yi.zhang@huaweicloud.com>", "list_archive_url": null, "date": "2026-03-27T10:29:27", "name": "[v4,01/13] ext4: add did_zero output parameter to ext4_block_zero_page_range()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8fbe41faa41586aa97438eadd2d65cc2d965b597", "submitter": { "id": 85428, "url": "http://patchwork.ozlabs.org/api/people/85428/?format=api", "name": "Zhang Yi", "email": "yi.zhang@huaweicloud.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260327102939.1095257-2-yi.zhang@huaweicloud.com/mbox/", "series": [ { "id": 497742, "url": "http://patchwork.ozlabs.org/api/series/497742/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=497742", "date": "2026-03-27T10:29:26", "name": "ext4: refactor partial block zero-out for iomap conversion", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/497742/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216843/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216843/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=WvBV=B3=vger.kernel.org=linux-ext4+bounces-15484-patchwork-incoming=ozlabs.org@ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-ext4@vger.kernel.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "patchwork-incoming@ozlabs.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1774607678; c=relaxed/simple;\n\tbh=viFvCHynwN2QwKfgVv4CMz86s7mPdhW8AzLlTm4Rt7I=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=k/ki/vktIpdWPB3NDl2R5J2dKNcGreY/U5xwGi/qK9inkIW8JYIR1ETqPKJ8F7Uu5ftJz8p4IYRp8jku5zOCs6NjVxDora+h3fddbEuMi3chOvEn0SJQqcEEYt5zotVq4ptUzakQvL9UUTpXf1uMSyPp82W1C3fz/aDJPShptjs=" ], "ARC-Authentication-Results": [ "i=2; gandalf.ozlabs.org;\n dmarc=none (p=none dis=none) header.from=huaweicloud.com;\n spf=pass (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-ext4+bounces-15484-patchwork-incoming=ozlabs.org@vger.kernel.org;\n receiver=ozlabs.org) smtp.mailfrom=vger.kernel.org", "i=1; smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=huaweicloud.com;\n spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56" ], "From": "Zhang Yi <yi.zhang@huaweicloud.com>", "To": "linux-ext4@vger.kernel.org", "Cc": "linux-fsdevel@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\ttytso@mit.edu,\n\tadilger.kernel@dilger.ca,\n\tjack@suse.cz,\n\tojaswin@linux.ibm.com,\n\tritesh.list@gmail.com,\n\tlibaokun@linux.alibaba.com,\n\tyi.zhang@huawei.com,\n\tyi.zhang@huaweicloud.com,\n\tyizhang089@gmail.com,\n\tyangerkun@huawei.com,\n\tyukuai@fnnas.com", "Subject": "[PATCH v4 01/13] ext4: add did_zero output parameter to\n ext4_block_zero_page_range()", "Date": "Fri, 27 Mar 2026 18:29:27 +0800", "Message-ID": "<20260327102939.1095257-2-yi.zhang@huaweicloud.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20260327102939.1095257-1-yi.zhang@huaweicloud.com>", "References": "<20260327102939.1095257-1-yi.zhang@huaweicloud.com>", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-CM-TRANSID": "cCh0CgC3utouXcZp_T2cCQ--.28730S5", "X-Coremail-Antispam": "1UD129KBjvJXoWxCF17XryfAw18KF1rKw15Jwb_yoW5uw1xpr\n\ty5t345ur47u34q9F4xWF1jvr1Sk3Z3GFW8W3y3G3s0v3yIq3WxKF95K3WFvF4jg3y7Xay0\n\tqF4Yy3y2gw1UArJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDU0xBIdaVrnRJUUUm014x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0\n\trVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jr4l82xGYIkIc2\n\tx26xkF7I0E14v26r4j6ryUM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0\n\tY4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw\n\tA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS\n\t0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2\n\tIY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0\n\tY48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2\n\txKxwCY1x0262kKe7AKxVWUtVW8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWU\n\tJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67\n\tkF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY\n\t6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0x\n\tvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVj\n\tvjDU0xZFpf9x0JUfKs8UUUUU=", "X-CM-SenderInfo": "d1lo6xhdqjqx5xdzvxpfor3voofrz/", "X-Spam-Status": "No, score=-1.1 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDMARC_MISSING,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,\n\tSPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org" }, "content": "From: Zhang Yi <yi.zhang@huawei.com>\n\nAdd a bool *did_zero output parameter to ext4_block_zero_page_range()\nand __ext4_block_zero_page_range(). The parameter reports whether a\npartial block was zeroed out, which is needed for the upcoming iomap\nbuffered I/O conversion.\n\nSigned-off-by: Zhang Yi <yi.zhang@huawei.com>\nReviewed-by: Jan Kara <jack@suse.cz>\n---\n fs/ext4/inode.c | 23 ++++++++++++++---------\n 1 file changed, 14 insertions(+), 9 deletions(-)", "diff": "diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c\nindex af6d1759c8de..1c9474d5d11d 100644\n--- a/fs/ext4/inode.c\n+++ b/fs/ext4/inode.c\n@@ -4003,7 +4003,8 @@ void ext4_set_aops(struct inode *inode)\n * racing writeback can come later and flush the stale pagecache to disk.\n */\n static int __ext4_block_zero_page_range(handle_t *handle,\n-\t\tstruct address_space *mapping, loff_t from, loff_t length)\n+\t\tstruct address_space *mapping, loff_t from, loff_t length,\n+\t\tbool *did_zero)\n {\n \tunsigned int offset, blocksize, pos;\n \text4_lblk_t iblock;\n@@ -4091,6 +4092,8 @@ static int __ext4_block_zero_page_range(handle_t *handle,\n \t\t\terr = ext4_jbd2_inode_add_write(handle, inode, from,\n \t\t\t\t\tlength);\n \t}\n+\tif (!err && did_zero)\n+\t\t*did_zero = true;\n \n unlock:\n \tfolio_unlock(folio);\n@@ -4106,7 +4109,8 @@ static int __ext4_block_zero_page_range(handle_t *handle,\n * that corresponds to 'from'\n */\n static int ext4_block_zero_page_range(handle_t *handle,\n-\t\tstruct address_space *mapping, loff_t from, loff_t length)\n+\t\tstruct address_space *mapping, loff_t from, loff_t length,\n+\t\tbool *did_zero)\n {\n \tstruct inode *inode = mapping->host;\n \tunsigned blocksize = inode->i_sb->s_blocksize;\n@@ -4120,10 +4124,11 @@ static int ext4_block_zero_page_range(handle_t *handle,\n \t\tlength = max;\n \n \tif (IS_DAX(inode)) {\n-\t\treturn dax_zero_range(inode, from, length, NULL,\n+\t\treturn dax_zero_range(inode, from, length, did_zero,\n \t\t\t\t &ext4_iomap_ops);\n \t}\n-\treturn __ext4_block_zero_page_range(handle, mapping, from, length);\n+\treturn __ext4_block_zero_page_range(handle, mapping, from, length,\n+\t\t\t\t\t did_zero);\n }\n \n /*\n@@ -4146,7 +4151,7 @@ static int ext4_block_truncate_page(handle_t *handle,\n \tblocksize = i_blocksize(inode);\n \tlength = blocksize - (from & (blocksize - 1));\n \n-\treturn ext4_block_zero_page_range(handle, mapping, from, length);\n+\treturn ext4_block_zero_page_range(handle, mapping, from, length, NULL);\n }\n \n int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,\n@@ -4169,13 +4174,13 @@ int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,\n \tif (start == end &&\n \t (partial_start || (partial_end != sb->s_blocksize - 1))) {\n \t\terr = ext4_block_zero_page_range(handle, mapping,\n-\t\t\t\t\t\t lstart, length);\n+\t\t\t\t\t\t lstart, length, NULL);\n \t\treturn err;\n \t}\n \t/* Handle partial zero out on the start of the range */\n \tif (partial_start) {\n-\t\terr = ext4_block_zero_page_range(handle, mapping,\n-\t\t\t\t\t\t lstart, sb->s_blocksize);\n+\t\terr = ext4_block_zero_page_range(handle, mapping, lstart,\n+\t\t\t\t\t\t sb->s_blocksize, NULL);\n \t\tif (err)\n \t\t\treturn err;\n \t}\n@@ -4183,7 +4188,7 @@ int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,\n \tif (partial_end != sb->s_blocksize - 1)\n \t\terr = ext4_block_zero_page_range(handle, mapping,\n \t\t\t\t\t\t byte_end - partial_end,\n-\t\t\t\t\t\t partial_end + 1);\n+\t\t\t\t\t\t partial_end + 1, NULL);\n \treturn err;\n }\n \n", "prefixes": [ "v4", "01/13" ] }